Daikin Comfora FTXP20~71L2V1B, Service Manual

Page: 32 / 68

2 Components
Service manual
32
ATXP20~3 FTXP20~7 ARXP20~3
RXP20~71L2V1B
Split Comfora R32
ESIE18-01 – 2019.02
a
a SW1
8 All LED’s on the Inverter Analyzer must lit.
9 Turn off the respective circuit breaker.
10 Wait a few minutes and confirm that the LED’s of the Inverter
Analyzer are off.
11 Disconnect the Inverter Analyzer from the Faston connectors.
12 Connect the Faston connectors to the wire terminals U, V and
W of the compressor.
INFORMATION
Use the notes made during disconnection to connect the
Faston connectors to the correct wire terminals of the
compressor.
All LED’s of the inverter
analyzer are lit during inverter
test? Action
Yes Return to "2.7.1 Checking
procedures" on page 31 of the
inverter PCB and continue with
the next procedure.
No Replace the inverter PCB, see
"2.7.2 Repair procedures" on
page 32
.
2.7.2 Repair procedures
As the inverter PCB is integrated in the main PCB of the unit, see
"2.8 Main PCB" on page 32 for the repair procedures.
2.8 Main PCB
2.8.1 Checking procedures
INFORMATION
It is recommended to perform the checks in the listed
order.
To perform a power check of the main PCB
1 Measure the voltage between the black and white wires shown
below.
a
b
a Black wire
b White wire
Is the measured voltage on the
PCB correct? Action
Yes Return to "2.8.1 Checking
procedures" on page 32 of the
PCB and continue with the next
procedure.
No Adjust the power of the main
PCB, see
"2.8.2 Repair
procedures" on page 33 .
To check the HAP LED of the main PCB
Prerequisite: Turn OFF the unit via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see "2.10 Plate
work" on page 35 .
1 Turn ON the power of the unit.
2 Locate the HAP LED on the main PCB.
a
a HAP LED
Does the HAP LED blink in
regular intervals (1 second
ON/1 second OFF)? Action
Yes Return to "2.8.1 Checking
procedures" on page 32 of the
main PCB and continue with the
next procedure.